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3 years ago

5

What are the characteristics of a continental drift?

1 answer:

Eduardwww [97]3 years ago

7 0

Continental drift was a theory that explained how continents shift position on Earth's surface. Set forth in 1912 by Alfred Wegener, a geophysicist and meteorologist, continental drift also explained why look-alike animal and plant fossils, and similar rock formations, are found on different continents.

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What is the mass number of an atom equal to?

PolarNik [594]

Answer:

number of protons plus the number of electrons in an atom

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3 years ago

What is the volume of 84 g of bromine gas (Br2) at STP?

Alla [95]

Answer : The correct option is, 11.77 L

Solution : Given,

Mass of bromine gas = 84 g

Molar mass of bromine gas = 159.8 g/mole

First we have to calculate the moles of bromine gas.

$\text{Moles of }Br_2=\frac{\text{ given mass of }Br_2}{\text{ molar mass of }Br_2}=\frac{84g}{159.8g/mole}=0.5256moles$

Now we have to calculate the volume of bromine gas at STP.

As we know that at STP,

1 mole of bromine gas contains 22.4 L volume of bromine gas

So, 0.5256 mole of bromine gas contains $22.4\times 0.5256=11.77L$ volume of bromine gas

Therefore, the volume of bromine gas at STP is, 11.77 L

3 0

4 years ago

Read 2 more answers

My teacher laid this much out for us but I don’t know how to get the products in each one.

irakobra [83]

Answer:dang

Explanation:

3 0

3 years ago

Oxidation number of the sulfur and chloride in the sulfur tetrachloride?

yuradex [85]

Answer:

SCl4

oxidation state of sulphur=+4

oxidation state of chlorine=-4

oxidation state of one chlorine atom=-1

6 0

3 years ago

A 1.00 x 10^-10 M solution of chloric acid Please help me solve this to find pH and pOH

Svetradugi [14.3K]

Answer: The pH of solution is 10.

The pOH of the solution is 4.

Explanation:

pH is the negative logarithm of concentration of hydrogen ion.

As given concentration of acidic solution is $1.00 \times 10^{-10} M$ . Therefore, pH of the solution is calculated as follows.

$pH = -log [H^{+}]\\= -log (1.00 \times 10^{-10})\\= 10$

The relation between pH and pOH is as follows.

pH + pOH = 14

pOH = 14 - pH

= 14 - 10

= 4

Thus, we an conclude that pH of solution is 10 and pOH of the solution is 4.

3 0

3 years ago